Trommelbremsen-S-Nocken mit versetzten Kurvenrollen

A drum brake is provided that improves the direction of the actuating forces to reduce stress, improve efficiency and permit thicker brake linings. First and second brake shoes each have a first end pivotally coupled to a brake spider. First and second cam followers are disposed at corresponding sec...

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Bibliographische Detailangaben
1. Verfasser: Berwanger, Fred W
Format: Patent
Sprache:ger
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Beschreibung
Zusammenfassung:A drum brake is provided that improves the direction of the actuating forces to reduce stress, improve efficiency and permit thicker brake linings. First and second brake shoes each have a first end pivotally coupled to a brake spider. First and second cam followers are disposed at corresponding second ends of the brake shoes. A cam engages the cam followers with movement of the cam causing the brake shoes to move between positions of engagement and disengagement with a braking surface. The cam followers are offset such that a center of the first cam follower is disposed at a first distance from a center axis of the brake and a center of the second cam follower is disposed at a second distance from the center axis with the first distance different from the second distance so as to improve the direction of the cam force vector.